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TCC76x
Specification Rev. 0.07
February 23, 2005
32-bit RISC Microprocessor for Digital Media Player
MEMORY CONTROLLER
Preliminary
15-8
RM [0]
Type
Remap Flag
0
The area 0 (0x00000000 ~ 0x0FFFFFFF) space is mapped to
internal / external boot ROM
1
R/W
The area 0 space is released from boot ROM
In initialization, RM flag direct that the lower address space is mapped to internal or external boot
ROM. The boot program in internal or external ROM set RM flag high after going to address
space that is not in lower address space(0x00000000~0x0FFFFFFF). After RM flag is set to 1,
the lower address space is released from internal or external boot ROM, so the lower address
space can be mapped to other memories including SDRAM or internal SRAM by changing the
base address of that memories. The RM flag can be restored to 0 by user request, but because the
lower address space is remapped to boot ROM again, care must be taken not to illegally change
the RM flag.
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